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FROM NZMJ
39
Read the full article
Available online
Is cardiomegaly on chest radiograph
representative of true cardiomegaly:
a cross-sectional observational study
comparing cardiac size on chest radiograph
to that on echocardiography
Jane McKee, Katherine Ferrier
The New Zealand Medical Journal; Volume 130 Number 1464
Achest x-ray (CXR) is a common tool used in medicine. When a
chest x-ray is interpreted, comment is often made of the heart size,
the term ‘cardiomegaly’ being used to indicate the person has an
enlarged heart. This study looked at the heart size on CXR in patients
who had suffered a heart attack compared to echocardiography, which
is often considered to be the “gold standard” in measuring a person’s
heart. The study showed that cardiomegaly on CXR was indicative of true
cardiomegaly only 56% of the time, thereby concluding that, in our sample
population, a diagnosis of ‘cardiomegaly’ cannot be made purely based on
CXR findings.